Wow, first time I'm hearing this with the original George Harrison sample! Not so much a sample as a whole track laid over the song. Apparently this version was uploaded on a Stereolab fanpage on Facebook or something, as the band is strictly forbidden to use it anywhere, if we may trust those liner notes on the "Transient" re-release quoted by the uploader:
"It's a real shame that we were unable to use the original recorded version of this track as it featured an amazing sounding reed instrument called a Shehnai taken from a track on George Harrison's Wonderwall LP. It wasn't really sampled as such but just taken directly off the LP and laid over the track. It worked so beautifully, flowing in and out of the song, but unfortunately we were denied permission to use it from Apple, and had to re-record a similar sounding part ourselves. Sean O'Hagan did a great job in trying to emulate the feel, offering something very different but sympathetic to the original instrument's effect on the rest of the track. However a little bit of chance and serendipity was lost. I didn't hear this original version again until just recently when we took everything off the master tapes. That's 25 years since I've heard it and it still sounds great and we still can't use it, not even as a bonus track." Tim Gane.
Here's the George Harrison album in question, for comparison's sake. This YouTube playlist has all the album songs on it, but I don't know the name of the actual song they lifted that sample from.